[Build 2.2] Crazy Miner's Fire Nova Mines

Let's take a look at the skill itself:

Attributes:
AoE, Mine, Spell, Fire, Duration.

Those represent the supportable mods while it is not necessary to improve the mine duration.
AoE, Mine, Spell and Fire damage will affect the spell absolutley equivalent which means
1% Increased AoE dmg = 1% Increased Mine dmg = 1% Increased Spell dmg = 1% Increased Fire dmg
which makes damage scaling very easily: you will always pick the highest % available.

Cast Time:
Each of the 4 waves is getting cast with a speed of 0.4 seconds which is the equivalent of
1/0.4 = 2.5 waves per second. While this is affected by your cast speed, it is obviously not recommended to stack any cast speed, one Fire Nova Mine will always cast 4 waves and the mine deploy time is not affected by your cast speed but by "increased Mine laying speed".

Mana Cost:
Fire Nova Mine has a ridiculously high base mana cost.
There are multiple options to deal with it:
- Early game: Mana Flask with high up time (Sanctified for example, 14 secs uptime)
- End game: Vaal Clarity + Increased Duration
- End game: Lavianga's Spirit (can be expensive)
The first option works fine but as soon as you hit endgame maps (around t11+) you want to be able to stack a maxmimum amount of mines to kill bosses as fast as possible.
In the following example, I compare the new support gem "Mine Field" with "Controlled Destruction":


Damage Effectiveness:
Fire Nova Mine has a damage effectiveness of 30%. This means that "flat spell damage" will be multiplied by 0.3. If you have 100 flat spelldmg, only 100 * 0.3 will go into calculation, this seems low but flat spelldmg still has a huge impact on our damage output.


Quality:
Quality gives you 20% increased fire damage which is one of the best quality bonuses for the whole build.

Tooltip average damage and mechanic:

The tooltip does not show you the damage done by one single mine
but only the damage done by the first wave.


Burning Damage:
Burning Damage deals 40% of the highest hit over 4 seconds while our highest hit
will always be the last wave (Burning damage does not stack but queues up!).

In case you want to modifiy my build and convert your damage:
Poison Damage:
Poison damage deals 10% of every wave and stacks. The calculation is slightly more complicated though since on average, only 2.5 waves will hit per second and poison lasts 2 seconds without modifiers.
Therefore in 2 seconds, 5 waves will hit and that is how the damage in the spreadsheet is calculated.

Sorted by importance, if there are 2 possible picks,
the left one is prefered for overall clearspeed while the
right one improves your static boss killing abilities.

Max Atr requirements for maxed out gems: 111dex,111str,155int.

6l Fire Nova Mine:
- Empower
- Trap & Mine Damage
- Fire Penetration
- Increased Area Effect/Concentrated Effect
- Mine Field/Controlled Destruction
3l Mobility:
- Whirling Blades
- Faster Attacks
- Fortify
3l Defensive - 1:
- Cast When Damage Taken
- Immortal Call
- Detonate Mines
4l Defensive - 2:
- Temporal Chains
- Blasphemy
- Enhance
- Enfeeble (Incase you pick Occultist!)
4l Defensive - 3:
- Cast When Damage Taken
- Blade Vortex
- Blind
- Ice Nova
Offensive & Supportive:
- Vaal Clarity
- Increased Duration
- Vaal Lightning Trap
- Tempest Shield

This does not include any damage over time,
check "Fire Nova Mine and Mechanics" -> "Calculate your damage"
for additional details.
https://goo.gl/XYjK3R

Max Atr requirements for maxed out gems: 111dex,111str,155int.
Note: The followeing trees do not provide enough atr, you will have to get some from gear, maybe even use slightly different pathing ("Practical Application" and right part of the tree, trade 2 into nodes for 1 int and 2dex for example).

- Normal = Oak
- Cruel = Passive Point
- Merciless = Power Charge

Assassin:

Picks:
- Deadly Infusion
- Ambush
Conclusion:
Increasing your 5% base critchance to 8% and your critical strike multiplier by 103% is huge.
My critical strike chance is around 45% with controlled destruction, assassin pushes it to 75% critical strike chance.
Unstable Infusion can be abused by an Incinerate + faster casting in your second weaponslot to instantly max out your powercharges, the "Blast Cascade" passive ensures that you won't run out of charges.

Saboteur:

Picks:
- Demolitions Specialist
- Blinding Assault
With Bomb Specialist, you can skip a Carcass Jack or even the increased Area of Effect support and use Critical Strike Chance or both Controlled Destruction and Mine Field.
Demolitions Specialist gives you the ability to place upto 6 mines at once for a crazy amount of burst dmg.

Occultist:

Picks:
- Wicked Ward
- Malediction
At some point we will accumulate enough damage that even endgame bosses get obliterated, at that point we might want to stack our defenses and the Occultist is the perfect choice for a hybrid build that cannot leech energy shield. The combination of temporal chains and enfeeble together with the Wicked Ward passive will turn you into a wall that still does incredible amounts of damage.
In case the base mana cost is not getting reduced in 2.2, running 2 curses on blasphemy will not be an option.

Please stick to the gem setups recommended in the "Gem Setups" spoiler!

I'll upload more as soon as Ascendancy is up: